From what Vlade Divac said in his press conference after the draft, he knew about Vanja going into the draft and did not just blindly pick him because he had no other choice.
Vlade is most likely looking at future insurance if Bogdan Bogdanovic leaves the team in free agency, or for someone younger since Bogi is slightly older than the other players like Harry Giles, De’Aaron Fox, and Marvin Bagley III.
What Can Vanja Provide?
From his limited highlights, Vanja does have a similar release to Bogi and can create his own shot.